Wrench.



J. RYAN.

WRENCH.

APPLICATION FILED APR.10, 1908.

912,177. Patented Feb.9, 1909.

WITNESSES INVENTOR,

QWMQMM Mm/M r Tn: NORRIS PETER! 60., WASHINGTON, D 0.

John 1:39am I iFFlQE.

JOHN RYAN, OF NEW YORK, N. Y.

WRENCH.

T 0 all whom it "may concern:

Be it known that l, John RYAN, a citizen of the United States, residing New York, in the county of New York and State of New York, have invented new and useful improvements in it renches, of which the fol lowing is a specification.

This invention relates to wrenches and more particular to what is known as pipe wrenches where in addition to the adjustment of the jaws to provide for the variation in the sizes of pipes a rocking movement is necessary to per 'iit of a grip and release action when rotat the pipe.

The object of tne'invention is to provide means for restoring the pivoted jaw to its normal position when relieved of its strain as will be more fully described in the follow ing specification, set forth in the claim and shown in the drawings, where:

Figure 1 is a side elevation of my in: proved wrench. Fig. 2 is a front view of 3 is a sectional view on the line .;b of big. 1.

The handle 5 of this wrench may be of any desired length, but for convenience of illustration the lower end of the handle is shown as being broken oil, and at its upper end is located the stationary jaw 6 with the teeth or serrations 7 on its upper face. In the side of the handle is a triangular recess 8 and pi"- oted at the upper end of the handle and just beneath the aw 6 is a frame 9 slotted to surround the handle and carry the stem 10 of the movable jaw 11. The stem is a mutilated screw as is usual in this class of tools and closely fits the slot in the ame 9 and is provided with the nut 12 playing in a horizontal opening 13 and when rotated it carries the jaw 11 upward or downward according to the direction of rotation.

The frame 9 is free to swing on the pivot 14 but it is retained normally in the position shown by a spring 15 secured at its lower end 16 to the handle and in the slot 8, the upper end of the spring being off set and working in he slot 16. The spring and its recess are ex- Specification of Letters Patent.

Application filed. April 10, 1908.

Patented Feb. 9, 1909.

Serial No. 426,294.

posed in Fig. 1 but as will be seen in Figs. 2 and 3 a cover 17 of sheet metal may be secured to the handle by a screw or rivet 18 and held in place by its overlapping sides which partly embrace the adjacent sides. ihe movement of the frame 9 is limited in one direction by the stem 10 and on the other side by the cross piece 19 at the front end of said frame.

It is evident that the spring 15 is influenced by the movement of the frame in either forward or backward movement and tends to return it to the intermediate position so that the wrench may be easily located on the pipe and by a reverse movement caused to firmly rip the same, the teeth 7 and 7 insuring a iirm hold.

The use of a single spring to effect the two movements of the movable jaw afltords not only a simple arrangement but the spring is suiliciently large to give the same the necessary strength to make the wrench a very serviceable one, finally the covering of the spring prevents the same from accumulating grease and dirt and gives the tool a compact and substantial appearance.

It is obvious that minor alterations in the shape and location of the various parts may be made without departing from the essential features above described.

What I claim as new and desire to secure by Letters Patent is:

In a wrench, the combination with a handle having a recess and having a stationary" jaw at its upper end, of a frame pivoted on the handle and carrying the adjustable jaw, and a spring in the recess and operating on the frame in both directions to retain it in one position when the tension of the spring is neutral.

In testimony whereof I afliX my signature in presence of two witnesses.

JOHN RYAN.

i/Vitn esses:

JAMES F. DUHAMEL, MAE W. OLiNroN. 

